Morecambe Bay Estuaries and Catchments
Morecambe Bay estuaries and catchments The group of estuaries that comprise Morecambe Bay form the largest area of intertidal mudflats and sands in the UK. The four rivers discharging into the bay are the Leven (with Crake) and Kent (with Bela) in the North, and Lune and Wyre in the East (Figure 1). Fig 1. The four contributory areas of the estuarine system of Morecambe Bay in Northwest England (below) of the Leven, Kent, Lune and Wyre rivers (left). The neighbouring rivers of the Ribble and South West Lakes region are also shown1 The Leven and Kent basins cover over 1,000 km2 (1,426 km2 when grouped with the neighbouring River Duddon), the Lune 1,223 km2 and Wyre 450 km2, with all draining into Morecambe Bay between the towns of Barrow-in-Furness in the Northwest and Blackpool in the South. The city of Lancaster and towns of Ulverston, Broughton-in-Furness, Ambleside, Windermere, Bowness-on- Windermere, Grange-over-Sands, Sedburgh, Kendal, Kirkby Lonsdale, Ingleton, Carnforth, Morecambe, Garstang, Fleetwood and Blackpool lie within the basins. Leven and Kent basins: River Leven is sourced on both Bow Fell (902 m) at the head of the Langdale Valley and Dollywagon Pike (858 m) above Dunmail Raise. These fells comprise of volcanic rocks of the Borrowdale Volcanic Group that characterise the central Cumbrian Mountains. The source on Bow Fell is only 3 km from the wettest place in the UK with the Sprinkling Tarn raingauge recording 6,528 mm in 1954. Both tributary streams flow through Lake Windermere (Fig. 2) that is England’s largest lake with a surface area of 14.7 km2.
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